Commit a4f0162f authored by Josef Bacik's avatar Josef Bacik Committed by Chris Mason
Browse files

Btrfs: free bitmaps properly when evicting the cache



If our space cache is wrong, we do the right thing and free up everything that
we loaded, however we don't reset the total_bitmaps counter or the thresholds or
anything.  So in btrfs_remove_free_space_cache make sure to call free_bitmap()
if it's a bitmap, this will keep us from panicing when we check to make sure we
don't have too many bitmaps.  Thanks,
Signed-off-by: default avatarJosef Bacik <josef@redhat.com>
Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent f789b684
......@@ -1768,10 +1768,13 @@ void btrfs_remove_free_space_cache(struct btrfs_block_group_cache *block_group)
while ((node = rb_last(&block_group->free_space_offset)) != NULL) {
info = rb_entry(node, struct btrfs_free_space, offset_index);
unlink_free_space(block_group, info);
if (info->bitmap)
kfree(info->bitmap);
kmem_cache_free(btrfs_free_space_cachep, info);
if (!info->bitmap) {
unlink_free_space(block_group, info);
kmem_cache_free(btrfs_free_space_cachep, info);
} else {
free_bitmap(block_group, info);
}
if (need_resched()) {
spin_unlock(&block_group->tree_lock);
cond_resched();
......
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